Soenke Liebau developed and enhanced Kubernetes operators for the Stackable ecosystem, focusing on multi-tenant scalability and robust service account management. In repositories such as stackabletech/trino-operator and stackabletech/hdfs-operator, he enabled multiple Stacklets per namespace by introducing distinct ServiceAccounts and refactoring RBAC resource handling for safer upgrades. Using Rust and YAML, Soenke addressed dependency management and improved CI/CD reliability. In stackabletech/secret-operator, he strengthened Kerberos keytab provisioning by replacing unwrap with Snafu for error handling and expanded documentation for Active Directory integration. His work demonstrated depth in system programming and operator development, emphasizing maintainability and upgrade safety.